tayoh -- Their; dvija-varah -- the best of brahmanas (Sandipani); tushtah -- satisfied; suddha -- pure; bhava -- with love; anuvrittibhih -- by the submissive acts; provaca -- he spoke; vedan -- the Vedas; akhilan -- all; sa -- together with; anga -- the (six) corollary literatures; upanishadah -- and the Upanishads; guruh -- the spiritual master.

That best of brahmanas, the spiritual master Sandipani, was satisfied with Their submissive behavior, and thus he taught Them the entire Vedas, together with their six corollaries and the Upanishads.